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-rw-r--r--gas/config/tc-m88k.c1452
1 files changed, 0 insertions, 1452 deletions
diff --git a/gas/config/tc-m88k.c b/gas/config/tc-m88k.c
deleted file mode 100644
index 931a496a54b..00000000000
--- a/gas/config/tc-m88k.c
+++ /dev/null
@@ -1,1452 +0,0 @@
-/* m88k.c -- Assembler for the Motorola 88000
- Contributed by Devon Bowen of Buffalo University
- and Torbjorn Granlund of the Swedish Institute of Computer Science.
- Copyright (C) 1989, 90, 91, 92, 93, 94, 95, 96, 1997
- Free Software Foundation, Inc.
-
-This file is part of GAS, the GNU Assembler.
-
-GAS is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GAS is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GAS; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
-
-#include <ctype.h>
-#include "as.h"
-#include "subsegs.h"
-#include "m88k-opcode.h"
-
-struct field_val_assoc
-{
- char *name;
- unsigned val;
-};
-
-struct field_val_assoc cr_regs[] =
-{
- {"PID", 0},
- {"PSR", 1},
- {"EPSR", 2},
- {"SSBR", 3},
- {"SXIP", 4},
- {"SNIP", 5},
- {"SFIP", 6},
- {"VBR", 7},
- {"DMT0", 8},
- {"DMD0", 9},
- {"DMA0", 10},
- {"DMT1", 11},
- {"DMD1", 12},
- {"DMA1", 13},
- {"DMT2", 14},
- {"DMD2", 15},
- {"DMA2", 16},
- {"SR0", 17},
- {"SR1", 18},
- {"SR2", 19},
- {"SR3", 20},
-
- {NULL, 0},
-};
-
-struct field_val_assoc fcr_regs[] =
-{
- {"FPECR", 0},
- {"FPHS1", 1},
- {"FPLS1", 2},
- {"FPHS2", 3},
- {"FPLS2", 4},
- {"FPPT", 5},
- {"FPRH", 6},
- {"FPRL", 7},
- {"FPIT", 8},
-
- {"FPSR", 62},
- {"FPCR", 63},
-
- {NULL, 0},
-};
-
-struct field_val_assoc cmpslot[] =
-{
-/* Integer Floating point */
- {"nc", 0},
- {"cp", 1},
- {"eq", 2},
- {"ne", 3},
- {"gt", 4},
- {"le", 5},
- {"lt", 6},
- {"ge", 7},
- {"hi", 8}, {"ou", 8},
- {"ls", 9}, {"ib", 9},
- {"lo", 10}, {"in", 10},
- {"hs", 11}, {"ob", 11},
- {"be", 12}, {"ue", 12},
- {"nb", 13}, {"lg", 13},
- {"he", 14}, {"ug", 14},
- {"nh", 15}, {"ule", 15},
- {"ul", 16},
- {"uge", 17},
-
- {NULL, 0},
-};
-
-struct field_val_assoc cndmsk[] =
-{
- {"gt0", 1},
- {"eq0", 2},
- {"ge0", 3},
- {"lt0", 12},
- {"ne0", 13},
- {"le0", 14},
-
- {NULL, 0},
-};
-
-struct m88k_insn
-{
- unsigned long opcode;
- expressionS exp;
- enum reloc_type reloc;
-};
-
-static char *get_bf PARAMS ((char *param, unsigned *valp));
-static char *get_cmp PARAMS ((char *param, unsigned *valp));
-static char *get_cnd PARAMS ((char *param, unsigned *valp));
-static char *get_cr PARAMS ((char *param, unsigned *regnop));
-static char *get_fcr PARAMS ((char *param, unsigned *regnop));
-static char *get_imm16 PARAMS ((char *param, struct m88k_insn *insn));
-static char *get_o6 PARAMS ((char *param, unsigned *valp));
-static char *get_reg PARAMS ((char *param, unsigned *regnop, int reg_prefix));
-static char *get_vec9 PARAMS ((char *param, unsigned *valp));
-static char *getval PARAMS ((char *param, unsigned int *valp));
-
-static char *get_pcr PARAMS ((char *param, struct m88k_insn *insn,
- enum reloc_type reloc));
-
-static int calcop PARAMS ((struct m88k_opcode *format,
- char *param, struct m88k_insn *insn));
-
-
-extern char *myname;
-static struct hash_control *op_hash = NULL;
-
-/* These bits should be turned off in the first address of every segment */
-int md_seg_align = 7;
-
-/* These chars start a comment anywhere in a source file (except inside
- another comment */
-const char comment_chars[] = ";";
-
-/* These chars only start a comment at the beginning of a line. */
-const char line_comment_chars[] = "#";
-
-const char line_separator_chars[] = "";
-
-/* Chars that can be used to separate mant from exp in floating point nums */
-const char EXP_CHARS[] = "eE";
-
-/* Chars that mean this number is a floating point constant */
-/* as in 0f123.456 */
-/* or 0H1.234E-12 (see exp chars above) */
-const char FLT_CHARS[] = "dDfF";
-
-extern void float_cons (), cons (), s_globl (), s_space (),
- s_set (), s_lcomm ();
-
-const pseudo_typeS md_pseudo_table[] =
-{
- {"align", s_align_bytes, 4},
- {"def", s_set, 0},
- {"dfloat", float_cons, 'd'},
- {"ffloat", float_cons, 'f'},
- {"global", s_globl, 0},
- {"half", cons, 2},
- {"bss", s_lcomm, 1},
- {"string", stringer, 0},
- {"word", cons, 4},
- /* Force set to be treated as an instruction. */
- {"set", NULL, 0},
- {".set", s_set, 0},
- {0}
-};
-
-void
-md_begin ()
-{
- const char *retval = NULL;
- unsigned int i = 0;
-
- /* initialize hash table */
-
- op_hash = hash_new ();
-
- /* loop until you see the end of the list */
-
- while (*m88k_opcodes[i].name)
- {
- char *name = m88k_opcodes[i].name;
-
- /* hash each mnemonic and record its position */
-
- retval = hash_insert (op_hash, name, &m88k_opcodes[i]);
-
- if (retval != NULL)
- as_fatal (_("Can't hash instruction '%s':%s"),
- m88k_opcodes[i].name, retval);
-
- /* skip to next unique mnemonic or end of list */
-
- for (i++; !strcmp (m88k_opcodes[i].name, name); i++)
- ;
- }
-}
-
-CONST char *md_shortopts = "";
-struct option md_longopts[] = {
- {NULL, no_argument, NULL, 0}
-};
-size_t md_longopts_size = sizeof(md_longopts);
-
-int
-md_parse_option (c, arg)
- int c;
- char *arg;
-{
- return 0;
-}
-
-void
-md_show_usage (stream)
- FILE *stream;
-{
-}
-
-void
-md_assemble (op)
- char *op;
-{
- char *param, *thisfrag;
- char c;
- struct m88k_opcode *format;
- struct m88k_insn insn;
-
- assert (op);
-
- /* skip over instruction to find parameters */
-
- for (param = op; *param != 0 && !isspace (*param); param++)
- ;
- c = *param;
- *param++ = '\0';
-
- /* try to find the instruction in the hash table */
-
- if ((format = (struct m88k_opcode *) hash_find (op_hash, op)) == NULL)
- {
- as_bad (_("Invalid mnemonic '%s'"), op);
- return;
- }
-
- /* try parsing this instruction into insn */
-
- insn.exp.X_add_symbol = 0;
- insn.exp.X_op_symbol = 0;
- insn.exp.X_add_number = 0;
- insn.exp.X_op = O_illegal;
- insn.reloc = NO_RELOC;
-
- while (!calcop (format, param, &insn))
- {
- /* if it doesn't parse try the next instruction */
-
- if (!strcmp (format[0].name, format[1].name))
- format++;
- else
- {
- as_fatal (_("Parameter syntax error"));
- return;
- }
- }
-
- /* grow the current frag and plop in the opcode */
-
- thisfrag = frag_more (4);
- md_number_to_chars (thisfrag, insn.opcode, 4);
-
- /* if this instruction requires labels mark it for later */
-
- switch (insn.reloc)
- {
- case NO_RELOC:
- break;
-
- case RELOC_LO16:
- case RELOC_HI16:
- fix_new_exp (frag_now,
- thisfrag - frag_now->fr_literal + 2,
- 2,
- &insn.exp,
- 0,
- insn.reloc);
- break;
-
- case RELOC_IW16:
- fix_new_exp (frag_now,
- thisfrag - frag_now->fr_literal,
- 4,
- &insn.exp,
- 0,
- insn.reloc);
- break;
-
- case RELOC_PC16:
- fix_new_exp (frag_now,
- thisfrag - frag_now->fr_literal + 2,
- 2,
- &insn.exp,
- 1,
- insn.reloc);
- break;
-
- case RELOC_PC26:
- fix_new_exp (frag_now,
- thisfrag - frag_now->fr_literal,
- 4,
- &insn.exp,
- 1,
- insn.reloc);
- break;
-
- default:
- as_fatal (_("Unknown relocation type"));
- break;
- }
-}
-
-static int
-calcop (format, param, insn)
- struct m88k_opcode *format;
- char *param;
- struct m88k_insn *insn;
-{
- char *fmt = format->op_spec;
- int f;
- unsigned val;
- unsigned opcode;
- int reg_prefix = 'r';
-
- insn->opcode = format->opcode;
- opcode = 0;
-
- for (;;)
- {
- if (param == 0)
- return 0;
- f = *fmt++;
- switch (f)
- {
- case 0:
- insn->opcode |= opcode;
- return (*param == 0 || *param == '\n');
-
- default:
- if (f != *param++)
- return 0;
- break;
-
- case 'd':
- param = get_reg (param, &val, reg_prefix);
- reg_prefix = 'r';
- opcode |= val << 21;
- break;
-
- case 'o':
- param = get_o6 (param, &val);
- opcode |= ((val >> 2) << 7);
- break;
-
- case 'x':
- reg_prefix = 'x';
- break;
-
- case '1':
- param = get_reg (param, &val, reg_prefix);
- reg_prefix = 'r';
- opcode |= val << 16;
- break;
-
- case '2':
- param = get_reg (param, &val, reg_prefix);
- reg_prefix = 'r';
- opcode |= val;
- break;
-
- case '3':
- param = get_reg (param, &val, 'r');
- opcode |= (val << 16) | val;
- break;
-
- case 'I':
- param = get_imm16 (param, insn);
- break;
-
- case 'b':
- param = get_bf (param, &val);
- opcode |= val;
- break;
-
- case 'p':
- param = get_pcr (param, insn, RELOC_PC16);
- break;
-
- case 'P':
- param = get_pcr (param, insn, RELOC_PC26);
- break;
-
- case 'B':
- param = get_cmp (param, &val);
- opcode |= val;
- break;
-
- case 'M':
- param = get_cnd (param, &val);
- opcode |= val;
- break;
-
- case 'c':
- param = get_cr (param, &val);
- opcode |= val << 5;
- break;
-
- case 'f':
- param = get_fcr (param, &val);
- opcode |= val << 5;
- break;
-
- case 'V':
- param = get_vec9 (param, &val);
- opcode |= val;
- break;
-
- case '?':
- /* Having this here repeats the warning somtimes.
- But can't we stand that? */
- as_warn (_("Use of obsolete instruction"));
- break;
- }
- }
-}
-
-static char *
-match_name (param, assoc_tab, valp)
- char *param;
- struct field_val_assoc *assoc_tab;
- unsigned *valp;
-{
- int i;
- char *name;
- int name_len;
-
- for (i = 0;; i++)
- {
- name = assoc_tab[i].name;
- if (name == NULL)
- return NULL;
- name_len = strlen (name);
- if (!strncmp (param, name, name_len))
- {
- *valp = assoc_tab[i].val;
- return param + name_len;
- }
- }
-}
-
-static char *
-get_reg (param, regnop, reg_prefix)
- char *param;
- unsigned *regnop;
- int reg_prefix;
-{
- unsigned c;
- unsigned regno;
-
- c = *param++;
- if (c == reg_prefix)
- {
- regno = *param++ - '0';
- if (regno < 10)
- {
- if (regno == 0)
- {
- *regnop = 0;
- return param;
- }
- c = *param - '0';
- if (c < 10)
- {
- regno = regno * 10 + c;
- if (c < 32)
- {
- *regnop = regno;
- return param + 1;
- }
- }
- else
- {
- *regnop = regno;
- return param;
- }
- }
- return NULL;
- }
- else if (c == 's' && param[0] == 'p')
- {
- *regnop = 31;
- return param + 1;
- }
-
- return 0;
-}
-
-static char *
-get_imm16 (param, insn)
- char *param;
- struct m88k_insn *insn;
-{
- enum reloc_type reloc = NO_RELOC;
- unsigned int val;
- char *save_ptr;
-
- if (!strncmp (param, "hi16", 4) && !isalnum (param[4]))
- {
- reloc = RELOC_HI16;
- param += 4;
- }
- else if (!strncmp (param, "lo16", 4) && !isalnum (param[4]))
- {
- reloc = RELOC_LO16;
- param += 4;
- }
- else if (!strncmp (param, "iw16", 4) && !isalnum (param[4]))
- {
- reloc = RELOC_IW16;
- param += 4;
- }
-
- save_ptr = input_line_pointer;
- input_line_pointer = param;
- expression (&insn->exp);
- param = input_line_pointer;
- input_line_pointer = save_ptr;
-
- val = insn->exp.X_add_number;
-
- if (insn->exp.X_op == O_constant)
- {
- /* Insert the value now, and reset reloc to NO_RELOC. */
- if (reloc == NO_RELOC)
- {
- /* Warn about too big expressions if not surrounded by xx16. */
- if (val > 0xffff)
- as_warn (_("Expression truncated to 16 bits"));
- }
-
- if (reloc == RELOC_HI16)
- val >>= 16;
-
- insn->opcode |= val & 0xffff;
- reloc = NO_RELOC;
- }
- else if (reloc == NO_RELOC)
- /* We accept a symbol even without lo16, hi16, etc, and assume
- lo16 was intended. */
- reloc = RELOC_LO16;
-
- insn->reloc = reloc;
-
- return param;
-}
-
-static char *
-get_pcr (param, insn, reloc)
- char *param;
- struct m88k_insn *insn;
- enum reloc_type reloc;
-{
- char *saveptr, *saveparam;
-
- saveptr = input_line_pointer;
- input_line_pointer = param;
-
- expression (&insn->exp);
-
- saveparam = input_line_pointer;
- input_line_pointer = saveptr;
-
- /* Botch: We should relocate now if O_constant. */
- insn->reloc = reloc;
-
- return saveparam;
-}
-
-static char *
-get_cmp (param, valp)
- char *param;
- unsigned *valp;
-{
- unsigned int val;
- char *save_ptr;
-
- save_ptr = param;
-
- param = match_name (param, cmpslot, valp);
- val = *valp;
-
- if (param == NULL)
- {
- param = save_ptr;
-
- save_ptr = input_line_pointer;
- input_line_pointer = param;
- val = get_absolute_expression ();
- param = input_line_pointer;
- input_line_pointer = save_ptr;
-
- if (val >= 32)
- {
- as_warn (_("Expression truncated to 5 bits"));
- val %= 32;
- }
- }
-
- *valp = val << 21;
- return param;
-}
-
-static char *
-get_cnd (param, valp)
- char *param;
- unsigned *valp;
-{
- unsigned int val;
-
- if (isdigit (*param))
- {
- param = getval (param, &val);
-
- if (val >= 32)
- {
- as_warn (_("Expression truncated to 5 bits"));
- val %= 32;
- }
- }
- else
- {
- if (isupper (*param))
- *param = tolower (*param);
-
- if (isupper (param[1]))
- param[1] = tolower (param[1]);
-
- param = match_name (param, cndmsk, valp);
-
- if (param == NULL)
- return NULL;
-
- val = *valp;
- }
-
- *valp = val << 21;
- return param;
-}
-
-static char *
-get_bf2 (param, bc)
- char *param;
- int bc;
-{
- int depth = 0;
- int c;
-
- for (;;)
- {
- c = *param;
- if (c == 0)
- return param;
- else if (c == '(')
- depth++;
- else if (c == ')')
- depth--;
- else if (c == bc && depth <= 0)
- return param;
- param++;
- }
-}
-
-static char *
-get_bf_offset_expression (param, offsetp)
- char *param;
- unsigned *offsetp;
-{
- unsigned offset;
-
- if (isalpha (param[0]))
- {
- if (isupper (param[0]))
- param[0] = tolower (param[0]);
- if (isupper (param[1]))
- param[1] = tolower (param[1]);
-
- param = match_name (param, cmpslot, offsetp);
-
- return param;
- }
- else
- {
- input_line_pointer = param;
- offset = get_absolute_expression ();
- param = input_line_pointer;
- }
-
- *offsetp = offset;
- return param;
-}
-
-static char *
-get_bf (param, valp)
- char *param;
- unsigned *valp;
-{
- unsigned offset = 0;
- unsigned width = 0;
- char *xp;
- char *save_ptr;
-
- xp = get_bf2 (param, '<');
-
- save_ptr = input_line_pointer;
- input_line_pointer = param;
- if (*xp == 0)
- {
- /* We did not find '<'. We have an offset (width implicitly 32). */
- param = get_bf_offset_expression (param, &offset);
- input_line_pointer = save_ptr;
- if (param == NULL)
- return NULL;
- }
- else
- {
- *xp++ = 0; /* Overwrite the '<' */
- param = get_bf2 (xp, '>');
- if (*param == 0)
- return NULL;
- *param++ = 0; /* Overwrite the '>' */
-
- width = get_absolute_expression ();
- xp = get_bf_offset_expression (xp, &offset);
- input_line_pointer = save_ptr;
-
- if (xp + 1 != param)
- return NULL;
- }
-
- *valp = ((width % 32) << 5) | (offset % 32);
-
- return param;
-}
-
-static char *
-get_cr (param, regnop)
- char *param;
- unsigned *regnop;
-{
- unsigned regno;
- unsigned c;
-
- if (!strncmp (param, "cr", 2))
- {
- param += 2;
-
- regno = *param++ - '0';
- if (regno < 10)
- {
- if (regno == 0)
- {
- *regnop = 0;
- return param;
- }
- c = *param - '0';
- if (c < 10)
- {
- regno = regno * 10 + c;
- if (c < 64)
- {
- *regnop = regno;
- return param + 1;
- }
- }
- else
- {
- *regnop = regno;
- return param;
- }
- }
- return NULL;
- }
-
- param = match_name (param, cr_regs, regnop);
-
- return param;
-}
-
-static char *
-get_fcr (param, regnop)
- char *param;
- unsigned *regnop;
-{
- unsigned regno;
- unsigned c;
-
- if (!strncmp (param, "fcr", 3))
- {
- param += 3;
-
- regno = *param++ - '0';
- if (regno < 10)
- {
- if (regno == 0)
- {
- *regnop = 0;
- return param;
- }
- c = *param - '0';
- if (c < 10)
- {
- regno = regno * 10 + c;
- if (c < 64)
- {
- *regnop = regno;
- return param + 1;
- }
- }
- else
- {
- *regnop = regno;
- return param;
- }
- }
- return NULL;
- }
-
- param = match_name (param, fcr_regs, regnop);
-
- return param;
-}
-
-static char *
-get_vec9 (param, valp)
- char *param;
- unsigned *valp;
-{
- unsigned val;
- char *save_ptr;
-
- save_ptr = input_line_pointer;
- input_line_pointer = param;
- val = get_absolute_expression ();
- param = input_line_pointer;
- input_line_pointer = save_ptr;
-
- if (val >= 1 << 9)
- as_warn (_("Expression truncated to 9 bits"));
-
- *valp = val % (1 << 9);
-
- return param;
-}
-
-static char *
-get_o6 (param, valp)
- char *param;
- unsigned *valp;
-{
- unsigned val;
- char *save_ptr;
-
- save_ptr = input_line_pointer;
- input_line_pointer = param;
- val = get_absolute_expression ();
- param = input_line_pointer;
- input_line_pointer = save_ptr;
-
- if (val & 0x3)
- as_warn (_("Removed lower 2 bits of expression"));
-
- *valp = val;
-
- return(param);
-}
-
-#define hexval(z) \
- (isdigit (z) ? (z) - '0' : \
- islower (z) ? (z) - 'a' + 10 : \
- isupper (z) ? (z) - 'A' + 10 : -1)
-
-static char *
-getval (param, valp)
- char *param;
- unsigned int *valp;
-{
- unsigned int val = 0;
- unsigned int c;
-
- c = *param++;
- if (c == '0')
- {
- c = *param++;
- if (c == 'x' || c == 'X')
- {
- c = *param++;
- c = hexval (c);
- while (c < 16)
- {
- val = val * 16 + c;
- c = *param++;
- c = hexval (c);
- }
- }
- else
- {
- c -= '0';
- while (c < 8)
- {
- val = val * 8 + c;
- c = *param++ - '0';
- }
- }
- }
- else
- {
- c -= '0';
- while (c < 10)
- {
- val = val * 10 + c;
- c = *param++ - '0';
- }
- }
-
- *valp = val;
- return param - 1;
-}
-
-void
-md_number_to_chars (buf, val, nbytes)
- char *buf;
- valueT val;
- int nbytes;
-{
- number_to_chars_bigendian (buf, val, nbytes);
-}
-
-#if 0
-
-/* This routine is never called. What is it for?
- Ian Taylor, Cygnus Support 13 Jul 1993 */
-
-void
-md_number_to_imm (buf, val, nbytes, fixP, seg_type)
- unsigned char *buf;
- unsigned int val;
- int nbytes;
- fixS *fixP;
- int seg_type;
-{
- if (seg_type != N_TEXT || fixP->fx_r_type == NO_RELOC)
- {
- switch (nbytes)
- {
- case 4:
- *buf++ = val >> 24;
- *buf++ = val >> 16;
- case 2:
- *buf++ = val >> 8;
- case 1:
- *buf = val;
- break;
-
- default:
- abort ();
- }
- return;
- }
-
- switch (fixP->fx_r_type)
- {
- case RELOC_IW16:
- buf[2] = val >> 8;
- buf[3] = val;
- break;
-
- case RELOC_LO16:
- buf[0] = val >> 8;
- buf[1] = val;
- break;
-
- case RELOC_HI16:
- buf[0] = val >> 24;
- buf[1] = val >> 16;
- break;
-
- case RELOC_PC16:
- val += 4;
- buf[0] = val >> 10;
- buf[1] = val >> 2;
- break;
-
- case RELOC_PC26:
- val += 4;
- buf[0] |= (val >> 26) & 0x03;
- buf[1] = val >> 18;
- buf[2] = val >> 10;
- buf[3] = val >> 2;
- break;
-
- case RELOC_32:
- buf[0] = val >> 24;
- buf[1] = val >> 16;
- buf[2] = val >> 8;
- buf[3] = val;
- break;
-
- default:
- as_fatal (_("Bad relocation type"));
- break;
- }
-}
-
-#endif /* 0 */
-
-void
-md_number_to_disp (buf, val, nbytes)
- char *buf;
- int val;
- int nbytes;
-{
- as_fatal (_("md_number_to_disp not defined"));
- md_number_to_chars (buf, val, nbytes);
-}
-
-void
-md_number_to_field (buf, val, nbytes)
- char *buf;
- int val;
- int nbytes;
-{
- as_fatal (_("md_number_to_field not defined"));
- md_number_to_chars (buf, val, nbytes);
-}
-
-#define MAX_LITTLENUMS 6
-
-/* Turn a string in input_line_pointer into a floating point constant of type
- type, and store the appropriate bytes in *litP. The number of LITTLENUMS
- emitted is stored in *sizeP . An error message is returned, or NULL on OK.
- */
-char *
-md_atof (type, litP, sizeP)
- char type;
- char *litP;
- int *sizeP;
-{
- int prec;
- LITTLENUM_TYPE words[MAX_LITTLENUMS];
- LITTLENUM_TYPE *wordP;
- char *t;
-
- switch (type)
- {
- case 'f':
- case 'F':
- case 's':
- case 'S':
- prec = 2;
- break;
-
- case 'd':
- case 'D':
- case 'r':
- case 'R':
- prec = 4;
- break;
-
- case 'x':
- case 'X':
- prec = 6;
- break;
-
- case 'p':
- case 'P':
- prec = 6;
- break;
-
- default:
- *sizeP = 0;
- return _("Bad call to MD_ATOF()");
- }
- t = atof_ieee (input_line_pointer, type, words);
- if (t)
- input_line_pointer = t;
-
- *sizeP = prec * sizeof (LITTLENUM_TYPE);
- for (wordP = words; prec--;)
- {
- md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE));
- litP += sizeof (LITTLENUM_TYPE);
- }
- return 0;
-}
-
-int md_short_jump_size = 4;
-
-void
-md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol)
- char *ptr;
- addressT from_addr, to_addr;
- fragS *frag;
- symbolS *to_symbol;
-{
- ptr[0] = (char) 0xc0;
- ptr[1] = 0x00;
- ptr[2] = 0x00;
- ptr[3] = 0x00;
- fix_new (frag,
- ptr - frag->fr_literal,
- 4,
- to_symbol,
- (offsetT) 0,
- 0,
- RELOC_PC26); /* Botch: Shouldn't this be RELOC_PC16? */
-}
-
-int md_long_jump_size = 4;
-
-void
-md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol)
- char *ptr;
- addressT from_addr, to_addr;
- fragS *frag;
- symbolS *to_symbol;
-{
- ptr[0] = (char) 0xc0;
- ptr[1] = 0x00;
- ptr[2] = 0x00;
- ptr[3] = 0x00;
- fix_new (frag,
- ptr - frag->fr_literal,
- 4,
- to_symbol,
- (offsetT) 0,
- 0,
- RELOC_PC26);
-}
-
-int
-md_estimate_size_before_relax (fragP, segment_type)
- fragS *fragP;
- segT segment_type;
-{
- as_fatal (_("Relaxation should never occur"));
- return (-1);
-}
-
-#if 0
-
-/* As far as I can tell, this routine is never called. What is it
- doing here?
- Ian Taylor, Cygnus Support 13 Jul 1993 */
-
-
-/*
- * Risc relocations are completely different, so it needs
- * this machine dependent routine to emit them.
- */
-void
-emit_relocations (fixP, segment_address_in_file)
- fixS *fixP;
- relax_addressT segment_address_in_file;
-{
- struct reloc_info_m88k ri;
- symbolS *symbolP;
- extern char *next_object_file_charP;
-
- bzero ((char *) &ri, sizeof (ri));
- for (; fixP; fixP = fixP->fx_next)
- {
- if (fixP->fx_r_type >= NO_RELOC)
- {
- fprintf (stderr, "fixP->fx_r_type = %d\n", fixP->fx_r_type);
- abort ();
- }
-
- if ((symbolP = fixP->fx_addsy) != NULL)
- {
- ri.r_address = fixP->fx_frag->fr_address +
- fixP->fx_where - segment_address_in_file;
- if ((symbolP->sy_type & N_TYPE) == N_UNDF)
- {
- ri.r_extern = 1;
- ri.r_symbolnum = symbolP->sy_number;
- }
- else
- {
- ri.r_extern = 0;
- ri.r_symbolnum = symbolP->sy_type & N_TYPE;
- }
- if (symbolP && symbolP->sy_frag)
- {
- ri.r_addend = symbolP->sy_frag->fr_address;
- }
- ri.r_type = fixP->fx_r_type;
- if (fixP->fx_pcrel)
- {
- ri.r_addend -= ri.r_address;
- }
- else
- {
- ri.r_addend = fixP->fx_addnumber;
- }
-
- append (&next_object_file_charP, (char *) &ri, sizeof (ri));
- }
- }
-}
-
-#endif /* 0 */
-
-#if 0
-
-/* This routine can be subsumed by s_lcomm in read.c.
- Ian Taylor, Cygnus Support 13 Jul 1993 */
-
-
-static void
-s_bss ()
-{
- char *name;
- char c;
- char *p;
- int temp, bss_align;
- symbolS *symbolP;
-
- name = input_line_pointer;
- c = get_symbol_end ();
- p = input_line_pointer;
- *p = c;
- SKIP_WHITESPACE ();
- if (*input_line_pointer != ',')
- {
- as_warn (_("Expected comma after name"));
- ignore_rest_of_line ();
- return;
- }
- input_line_pointer++;
- if ((temp = get_absolute_expression ()) < 0)
- {
- as_warn (_("BSS length (%d.) <0! Ignored."), temp);
- ignore_rest_of_line ();
- return;
- }
- *p = 0;
- symbolP = symbol_find_or_make (name);
- *p = c;
- if (*input_line_pointer == ',')
- {
- input_line_pointer++;
- bss_align = get_absolute_expression ();
- }
- else
- bss_align = 0;
-
- if (!S_IS_DEFINED(symbolP)
- || S_GET_SEGMENT(symbolP) == SEG_BSS)
- {
- if (! need_pass_2)
- {
- char *p;
- segT current_seg = now_seg;
- subsegT current_subseg = now_subseg;
-
- subseg_set (SEG_BSS, 1); /* switch to bss */
-
- if (bss_align)
- frag_align (bss_align, 0, 0);
-
- /* detach from old frag */
- if (symbolP->sy_type == N_BSS && symbolP->sy_frag != NULL)
- symbolP->sy_frag->fr_symbol = NULL;
-
- symbolP->sy_frag = frag_now;
- p = frag_var (rs_org, 1, 1, (relax_substateT)0, symbolP,
- (offsetT) temp, (char *)0);
- *p = 0;
- S_SET_SEGMENT (symbolP, SEG_BSS);
-
- subseg_set (current_seg, current_subseg);
- }
- }
- else
- {
- as_warn (_("Ignoring attempt to re-define symbol %s."), name);
- }
-
- while (!is_end_of_line[*input_line_pointer])
- {
- input_line_pointer++;
- }
-}
-
-#endif /* 0 */
-
-#ifdef M88KCOFF
-
-/* These functions are needed if we are linking with obj-coffbfd.c.
- That file may be replaced by a more BFD oriented version at some
- point. If that happens, these functions should be rexamined.
-
- Ian Lance Taylor, Cygnus Support, 13 July 1993. */
-
-/* Given a fixS structure (created by a call to fix_new, above),
- return the BFD relocation type to use for it. */
-
-short
-tc_coff_fix2rtype (fixp)
- fixS *fixp;
-{
- switch (fixp->fx_r_type)
- {
- case RELOC_LO16:
- return R_LVRT16;
- case RELOC_HI16:
- return R_HVRT16;
- case RELOC_PC16:
- return R_PCR16L;
- case RELOC_PC26:
- return R_PCR26L;
- case RELOC_32:
- return R_VRT32;
- case RELOC_IW16:
- return R_VRT16;
- default:
- abort ();
- }
-}
-
-/* Apply a fixS to the object file. Since COFF does not use addends
- in relocs, the addend is actually stored directly in the object
- file itself. */
-
-void
-md_apply_fix (fixp, val)
- fixS *fixp;
- long val;
-{
- char *buf;
-
- buf = fixp->fx_frag->fr_literal + fixp->fx_where;
- fixp->fx_offset = 0;
-
- switch (fixp->fx_r_type)
- {
- case RELOC_IW16:
- fixp->fx_offset = val >> 16;
- buf[2] = val >> 8;
- buf[3] = val;
- break;
-
- case RELOC_LO16:
- fixp->fx_offset = val >> 16;
- buf[0] = val >> 8;
- buf[1] = val;
- break;
-
- case RELOC_HI16:
- fixp->fx_offset = val >> 16;
- buf[0] = val >> 8;
- buf[1] = val;
- break;
-
- case RELOC_PC16:
- buf[0] = val >> 10;
- buf[1] = val >> 2;
- break;
-
- case RELOC_PC26:
- buf[0] |= (val >> 26) & 0x03;
- buf[1] = val >> 18;
- buf[2] = val >> 10;
- buf[3] = val >> 2;
- break;
-
- case RELOC_32:
- buf[0] = val >> 24;
- buf[1] = val >> 16;
- buf[2] = val >> 8;
- buf[3] = val;
- break;
-
- default:
- abort ();
- }
-}
-
-/* Where a PC relative offset is calculated from. On the m88k they
- are calculated from just after the instruction. */
-
-long
-md_pcrel_from (fixp)
- fixS *fixp;
-{
- switch (fixp->fx_r_type)
- {
- case RELOC_PC16:
- return fixp->fx_frag->fr_address + fixp->fx_where - 2;
- case RELOC_PC26:
- return fixp->fx_frag->fr_address + fixp->fx_where;
- default:
- abort ();
- }
- /*NOTREACHED*/
-}
-
-/* When we align the .init section, insert the correct NOP pattern. */
-
-int
-m88k_do_align (n, fill, max, len)
- int n;
- const char *fill;
- int len;
- int max;
-{
- if (fill == NULL
- && strcmp (obj_segment_name (now_seg), ".init") == 0)
- {
- static const unsigned char nop_pattern[] = { 0xf4, 0x00, 0x58, 0x00 };
- frag_align_pattern (n, nop_pattern, sizeof (nop_pattern), max);
- return 1;
- }
- return 0;
-}
-
-#endif /* M88KCOFF */
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